Broom-head for track-sweepers



(No Model.)

P PETRIR BROOM HEAD FOR TRACK SWEEPERS.

NQ. 365,628 Patented June 28, 1887@ ATTU RN EY UNITED STATES PATENT OFFICE.

PETE-R PETRIE, OF BROOKLYN, NEW YORK.

BROOM-HEAD FOR TRACK-SWEEPERS.

SPECIFICATION forming part of Letters Patent No. 365,628, dated June 28, 1887.

A Application filed October 16, 1856. Serial No. 216,376. fNo model.)

expense lessened, and the inserting, removing, and replacing of the rattan bristles are facilitated.

The improvement will he hereinafter fully deseribed,and specifically pointed out in .the claims, reference being had to the accompanying drawings, in which-w Figure 1 represents an end, view of the revolving broom of a track-sweeper constructed according to my improvement. Fig. 2 is a face view of the inner side of the broom-head, showing, also, the manner of attaching the rattan, and in crosssection the fastening-bars. Fig. 3 is a section on the line a: a: of Fig. 2. Fig. 4is a detail sectionon the line 3 3 of Fig. 3. Fig. 5is'an end view of one form ofbroom head and attachment as heretofore used.

A is the broom-head, one of which is secured upon a revolving axle at either end thereof, a row of rattan bristles being clamped between bars attached at their ends to the 0pposite broom-heads. The broom-head is a single casting consisting of a disk, a, having central hub, a, and perforated through the said hub to receive the axle. Radially-set outward-widening arms B, seven in number, and cast in one piece with the said disk and hub, project a distance outside of the disk, and on the outer end of the said arms are cast laterally opposite shoulders I). The cane to form the bristles is doubled up around a wooden bar, G,wedge-shaped in cross-section, as shown in Fig. 2, so that the outer ends of the cane will diverge according to the angle of thewedge. Rows of cane thus formed are clamped in position by flat iron bars D at op- 0 and bolts d, passing through the said bars D G and fastened by suitable nuts, as shown in the drawings.

To prevent the cane from slipping out endwise from between the bars. before attaching them to the broom-heads, a piece, 0, at the outer edge of the wooden bar isleft projeoting at each end thereof, a hole bored through the same, and a pin, (2, inserted through the said hole crosswise to the bar, thus effecting its purpose. It will be seen that by doubling up the cane E, as aforesaid, it will not onlybe prevented from getting loose and coming out of its fastening, but two rows of cane are thus formed, (instead of one, whenthe old construction shown inFig. 5 is used,) and by using seven arms B a revolvingbrush of fourteen rows of cane bristles is obtained. The

cane having been bent, as aforesaid, around the wooden bar 0 and clamped to the same by the iron bars D at opposite sides, and secured by bolts (2, the said side bars, D, are then bolted at their ends to the arms B, as shown in Figs. 2 and 3, the length of the broom being found without adjustment by moving the end of the bar D until it rests in contact with the disk a, as shown in Fig. 3, a-nd the radial dis tance of the outer edge of the bar D (and thereby, also, the uniform diameter of the broom) being obtained by simply moving the -bar D outward until its outer edge rests against the inner' edge of the shoulder b. The open space between each two adjacent arms B B, outside of the disk a, gives access for inserting and fastening the end bolts through the bars D and the arms B.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is'

1. A revolving broom-head consisting ofa disk, at, having hub a, and arms B,projecting radially beyond the said hub and disk and provided at their outer ends with laterally-oparms B, the said arms projecting radially beyond the said hub and disk, and provided at their outer ends with laterally-opposite shoulders Z) for the attachment of the bristlesliolding bars D, substantially as set forth.

3. The device for forming and holding double rows of bristles for a revolving broom,

' which consists in the combination of the wedgeshaped bar 0, the canes E, bent around the thinner edge of the said bar, the bars D, clamping the cane E against opposite sides of the bar 0, and the bolts (1, securing together the said bars D O D and cane E, the said wedgeshaped bar 0 having end projections, 0, provided with cross-pins e, substantially as speci- I 5 fled,

In testimony that I claim the foregoing as my invention I have signed my name,in presence of two witnesses, this 13th dayof October,1SS6.

PETER PETRIE.

\Vi tn esses:

A. W. ALM vIs'r, A. XVALILBERG. 

